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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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1dc5ec2452
Add trunking support to the driver. Trunking is found on more recent asics. In general, trunking appears as a single "port" to the driver and overall behavior doesn't differ. Link speed is reported as an aggregate value, while link speed control is done on a per-physical link basis with all links in the trunk symmetrical. Some commands returning port information are updated to additionally provide trunking information. And new ACQEs are generated to report physical link events relative to the trunk. This patch contains the following modifications: - Added link speed settings of 128GB and 256GB. - Added handling of trunk-related ACQEs, mainly logging and trapping of physical link statuses. - Added additional bsg interface to query trunk state by applications. - Augment link_state sysfs attribtute to display trunk link status Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
375 lines
12 KiB
C
375 lines
12 KiB
C
/*******************************************************************
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* This file is part of the Emulex Linux Device Driver for *
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* Fibre Channel Host Bus Adapters. *
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* Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term *
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* “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. *
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* Copyright (C) 2010-2015 Emulex. All rights reserved. *
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* EMULEX and SLI are trademarks of Emulex. *
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* www.broadcom.com *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of version 2 of the GNU General *
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* Public License as published by the Free Software Foundation. *
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* This program is distributed in the hope that it will be useful. *
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* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
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* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
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* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
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* TO BE LEGALLY INVALID. See the GNU General Public License for *
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* more details, a copy of which can be found in the file COPYING *
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* included with this package. *
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*******************************************************************/
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/* bsg definitions
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* No pointers to user data are allowed, all application buffers and sizes will
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* derived through the bsg interface.
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*
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* These are the vendor unique structures passed in using the bsg
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* FC_BSG_HST_VENDOR message code type.
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*/
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#define LPFC_BSG_VENDOR_SET_CT_EVENT 1
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#define LPFC_BSG_VENDOR_GET_CT_EVENT 2
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#define LPFC_BSG_VENDOR_SEND_MGMT_RESP 3
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#define LPFC_BSG_VENDOR_DIAG_MODE 4
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#define LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK 5
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#define LPFC_BSG_VENDOR_GET_MGMT_REV 6
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#define LPFC_BSG_VENDOR_MBOX 7
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#define LPFC_BSG_VENDOR_MENLO_CMD 8
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#define LPFC_BSG_VENDOR_MENLO_DATA 9
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#define LPFC_BSG_VENDOR_DIAG_MODE_END 10
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#define LPFC_BSG_VENDOR_LINK_DIAG_TEST 11
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#define LPFC_BSG_VENDOR_FORCED_LINK_SPEED 14
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#define LPFC_BSG_VENDOR_RAS_GET_LWPD 16
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#define LPFC_BSG_VENDOR_RAS_GET_FWLOG 17
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#define LPFC_BSG_VENDOR_RAS_GET_CONFIG 18
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#define LPFC_BSG_VENDOR_RAS_SET_CONFIG 19
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#define LPFC_BSG_VENDOR_GET_TRUNK_INFO 20
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struct set_ct_event {
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uint32_t command;
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uint32_t type_mask;
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uint32_t ev_req_id;
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uint32_t ev_reg_id;
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};
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struct get_ct_event {
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uint32_t command;
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uint32_t ev_reg_id;
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uint32_t ev_req_id;
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};
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struct get_ct_event_reply {
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uint32_t immed_data;
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uint32_t type;
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};
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struct send_mgmt_resp {
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uint32_t command;
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uint32_t tag;
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};
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#define INTERNAL_LOOP_BACK 0x1 /* adapter short cuts the loop internally */
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#define EXTERNAL_LOOP_BACK 0x2 /* requires an external loopback plug */
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struct diag_mode_set {
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uint32_t command;
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uint32_t type;
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uint32_t timeout;
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};
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struct sli4_link_diag {
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uint32_t command;
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uint32_t timeout;
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uint32_t test_id;
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uint32_t loops;
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uint32_t test_version;
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uint32_t error_action;
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};
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struct diag_mode_test {
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uint32_t command;
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};
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struct diag_status {
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uint32_t mbox_status;
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uint32_t shdr_status;
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uint32_t shdr_add_status;
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};
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#define LPFC_WWNN_TYPE 0
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#define LPFC_WWPN_TYPE 1
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struct get_mgmt_rev {
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uint32_t command;
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};
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#define MANAGEMENT_MAJOR_REV 1
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#define MANAGEMENT_MINOR_REV 1
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/* the MgmtRevInfo structure */
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struct MgmtRevInfo {
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uint32_t a_Major;
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uint32_t a_Minor;
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};
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struct get_mgmt_rev_reply {
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struct MgmtRevInfo info;
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};
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#define BSG_MBOX_SIZE 4096 /* mailbox command plus extended data */
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/* BSG mailbox request header */
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struct dfc_mbox_req {
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uint32_t command;
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uint32_t mbOffset;
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uint32_t inExtWLen;
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uint32_t outExtWLen;
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uint32_t extMboxTag;
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uint32_t extSeqNum;
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};
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/* Used for menlo command or menlo data. The xri is only used for menlo data */
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struct menlo_command {
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uint32_t cmd;
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uint32_t xri;
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};
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struct menlo_response {
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uint32_t xri; /* return the xri of the iocb exchange */
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};
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/*
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* macros and data structures for handling sli-config mailbox command
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* pass-through support, this header file is shared between user and
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* kernel spaces, note the set of macros are duplicates from lpfc_hw4.h,
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* with macro names prefixed with bsg_, as the macros defined in
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* lpfc_hw4.h are not accessible from user space.
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*/
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/* Macros to deal with bit fields. Each bit field must have 3 #defines
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* associated with it (_SHIFT, _MASK, and _WORD).
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* EG. For a bit field that is in the 7th bit of the "field4" field of a
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* structure and is 2 bits in size the following #defines must exist:
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* struct temp {
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* uint32_t field1;
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* uint32_t field2;
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* uint32_t field3;
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* uint32_t field4;
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* #define example_bit_field_SHIFT 7
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* #define example_bit_field_MASK 0x03
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* #define example_bit_field_WORD field4
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* uint32_t field5;
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* };
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* Then the macros below may be used to get or set the value of that field.
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* EG. To get the value of the bit field from the above example:
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* struct temp t1;
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* value = bsg_bf_get(example_bit_field, &t1);
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* And then to set that bit field:
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* bsg_bf_set(example_bit_field, &t1, 2);
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* Or clear that bit field:
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* bsg_bf_set(example_bit_field, &t1, 0);
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*/
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#define bsg_bf_get_le32(name, ptr) \
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((le32_to_cpu((ptr)->name##_WORD) >> name##_SHIFT) & name##_MASK)
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#define bsg_bf_get(name, ptr) \
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(((ptr)->name##_WORD >> name##_SHIFT) & name##_MASK)
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#define bsg_bf_set_le32(name, ptr, value) \
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((ptr)->name##_WORD = cpu_to_le32(((((value) & \
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name##_MASK) << name##_SHIFT) | (le32_to_cpu((ptr)->name##_WORD) & \
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~(name##_MASK << name##_SHIFT)))))
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#define bsg_bf_set(name, ptr, value) \
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((ptr)->name##_WORD = ((((value) & name##_MASK) << name##_SHIFT) | \
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((ptr)->name##_WORD & ~(name##_MASK << name##_SHIFT))))
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/*
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* The sli_config structure specified here is based on the following
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* restriction:
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*
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* -- SLI_CONFIG EMB=0, carrying MSEs, will carry subcommands without
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* carrying HBD.
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* -- SLI_CONFIG EMB=1, not carrying MSE, will carry subcommands with or
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* without carrying HBDs.
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*/
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struct lpfc_sli_config_mse {
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uint32_t pa_lo;
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uint32_t pa_hi;
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uint32_t buf_len;
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#define lpfc_mbox_sli_config_mse_len_SHIFT 0
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#define lpfc_mbox_sli_config_mse_len_MASK 0xffffff
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#define lpfc_mbox_sli_config_mse_len_WORD buf_len
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};
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struct lpfc_sli_config_hbd {
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uint32_t buf_len;
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#define lpfc_mbox_sli_config_ecmn_hbd_len_SHIFT 0
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#define lpfc_mbox_sli_config_ecmn_hbd_len_MASK 0xffffff
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#define lpfc_mbox_sli_config_ecmn_hbd_len_WORD buf_len
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uint32_t pa_lo;
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uint32_t pa_hi;
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};
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struct lpfc_sli_config_hdr {
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uint32_t word1;
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#define lpfc_mbox_hdr_emb_SHIFT 0
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#define lpfc_mbox_hdr_emb_MASK 0x00000001
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#define lpfc_mbox_hdr_emb_WORD word1
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#define lpfc_mbox_hdr_mse_cnt_SHIFT 3
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#define lpfc_mbox_hdr_mse_cnt_MASK 0x0000001f
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#define lpfc_mbox_hdr_mse_cnt_WORD word1
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uint32_t payload_length;
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uint32_t tag_lo;
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uint32_t tag_hi;
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uint32_t reserved5;
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};
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struct lpfc_sli_config_emb0_subsys {
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struct lpfc_sli_config_hdr sli_config_hdr;
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#define LPFC_MBX_SLI_CONFIG_MAX_MSE 19
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struct lpfc_sli_config_mse mse[LPFC_MBX_SLI_CONFIG_MAX_MSE];
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uint32_t padding;
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uint32_t word64;
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#define lpfc_emb0_subcmnd_opcode_SHIFT 0
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#define lpfc_emb0_subcmnd_opcode_MASK 0xff
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#define lpfc_emb0_subcmnd_opcode_WORD word64
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#define lpfc_emb0_subcmnd_subsys_SHIFT 8
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#define lpfc_emb0_subcmnd_subsys_MASK 0xff
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#define lpfc_emb0_subcmnd_subsys_WORD word64
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/* Subsystem FCOE (0x0C) OpCodes */
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#define SLI_CONFIG_SUBSYS_FCOE 0x0C
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#define FCOE_OPCODE_READ_FCF 0x08
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#define FCOE_OPCODE_ADD_FCF 0x09
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#define FCOE_OPCODE_SET_DPORT_MODE 0x27
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#define FCOE_OPCODE_GET_DPORT_RESULTS 0x28
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};
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struct lpfc_sli_config_emb1_subsys {
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struct lpfc_sli_config_hdr sli_config_hdr;
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uint32_t word6;
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#define lpfc_emb1_subcmnd_opcode_SHIFT 0
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#define lpfc_emb1_subcmnd_opcode_MASK 0xff
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#define lpfc_emb1_subcmnd_opcode_WORD word6
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#define lpfc_emb1_subcmnd_subsys_SHIFT 8
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#define lpfc_emb1_subcmnd_subsys_MASK 0xff
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#define lpfc_emb1_subcmnd_subsys_WORD word6
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/* Subsystem COMN (0x01) OpCodes */
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#define SLI_CONFIG_SUBSYS_COMN 0x01
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#define COMN_OPCODE_GET_PROFILE_CONFIG 0xA4
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#define COMN_OPCODE_READ_OBJECT 0xAB
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#define COMN_OPCODE_WRITE_OBJECT 0xAC
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#define COMN_OPCODE_READ_OBJECT_LIST 0xAD
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#define COMN_OPCODE_DELETE_OBJECT 0xAE
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#define COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES 0x79
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#define COMN_OPCODE_GET_CNTL_ATTRIBUTES 0x20
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uint32_t timeout;
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uint32_t request_length;
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uint32_t word9;
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#define lpfc_subcmnd_version_SHIFT 0
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#define lpfc_subcmnd_version_MASK 0xff
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#define lpfc_subcmnd_version_WORD word9
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uint32_t word10;
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#define lpfc_subcmnd_ask_rd_len_SHIFT 0
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#define lpfc_subcmnd_ask_rd_len_MASK 0xffffff
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#define lpfc_subcmnd_ask_rd_len_WORD word10
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uint32_t rd_offset;
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uint32_t obj_name[26];
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uint32_t hbd_count;
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#define LPFC_MBX_SLI_CONFIG_MAX_HBD 8
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struct lpfc_sli_config_hbd hbd[LPFC_MBX_SLI_CONFIG_MAX_HBD];
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};
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struct lpfc_sli_config_mbox {
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uint32_t word0;
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#define lpfc_mqe_status_SHIFT 16
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#define lpfc_mqe_status_MASK 0x0000FFFF
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#define lpfc_mqe_status_WORD word0
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#define lpfc_mqe_command_SHIFT 8
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#define lpfc_mqe_command_MASK 0x000000FF
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#define lpfc_mqe_command_WORD word0
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union {
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struct lpfc_sli_config_emb0_subsys sli_config_emb0_subsys;
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struct lpfc_sli_config_emb1_subsys sli_config_emb1_subsys;
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} un;
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};
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#define LPFC_FORCED_LINK_SPEED_NOT_SUPPORTED 0
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#define LPFC_FORCED_LINK_SPEED_SUPPORTED 1
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struct get_forced_link_speed_support {
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uint32_t command;
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};
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struct forced_link_speed_support_reply {
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uint8_t supported;
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};
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struct lpfc_bsg_ras_req {
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uint32_t command;
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};
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struct lpfc_bsg_get_fwlog_req {
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uint32_t command;
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uint32_t read_size;
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uint32_t read_offset;
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};
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struct lpfc_bsg_get_ras_lwpd {
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uint32_t offset;
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uint32_t wrap_count;
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};
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struct lpfc_bsg_set_ras_config_req {
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uint32_t command;
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uint8_t action;
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#define LPFC_RASACTION_STOP_LOGGING 0x00
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#define LPFC_RASACTION_START_LOGGING 0x01
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uint8_t log_level;
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};
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struct lpfc_bsg_get_ras_config_reply {
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uint8_t state;
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#define LPFC_RASLOG_STATE_STOPPED 0x00
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#define LPFC_RASLOG_STATE_RUNNING 0x01
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uint8_t log_level;
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uint32_t log_buff_sz;
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};
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struct lpfc_trunk_info {
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uint32_t word0;
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#define lpfc_trunk_info_link_status_SHIFT 0
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#define lpfc_trunk_info_link_status_MASK 1
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#define lpfc_trunk_info_link_status_WORD word0
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#define lpfc_trunk_info_trunk_active0_SHIFT 8
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#define lpfc_trunk_info_trunk_active0_MASK 1
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#define lpfc_trunk_info_trunk_active0_WORD word0
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#define lpfc_trunk_info_trunk_active1_SHIFT 9
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#define lpfc_trunk_info_trunk_active1_MASK 1
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#define lpfc_trunk_info_trunk_active1_WORD word0
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#define lpfc_trunk_info_trunk_active2_SHIFT 10
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#define lpfc_trunk_info_trunk_active2_MASK 1
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#define lpfc_trunk_info_trunk_active2_WORD word0
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#define lpfc_trunk_info_trunk_active3_SHIFT 11
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#define lpfc_trunk_info_trunk_active3_MASK 1
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#define lpfc_trunk_info_trunk_active3_WORD word0
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#define lpfc_trunk_info_trunk_config0_SHIFT 12
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#define lpfc_trunk_info_trunk_config0_MASK 1
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#define lpfc_trunk_info_trunk_config0_WORD word0
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#define lpfc_trunk_info_trunk_config1_SHIFT 13
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#define lpfc_trunk_info_trunk_config1_MASK 1
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#define lpfc_trunk_info_trunk_config1_WORD word0
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#define lpfc_trunk_info_trunk_config2_SHIFT 14
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#define lpfc_trunk_info_trunk_config2_MASK 1
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#define lpfc_trunk_info_trunk_config2_WORD word0
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#define lpfc_trunk_info_trunk_config3_SHIFT 15
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#define lpfc_trunk_info_trunk_config3_MASK 1
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#define lpfc_trunk_info_trunk_config3_WORD word0
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uint16_t port_speed;
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uint16_t logical_speed;
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uint32_t reserved3;
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};
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struct get_trunk_info_req {
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uint32_t command;
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};
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/* driver only */
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#define SLI_CONFIG_NOT_HANDLED 0
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#define SLI_CONFIG_HANDLED 1
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